Publication: Investigation on the ion velocity distribution in the magnetic nozzle of an ECR plasma thruster using LIF measurements
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2017
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Abstract
Laser-induced fluorescence (LIF) is a non-intrusive technique that can provide useful information on ion production and acceleration in electric propulsion system. In this paper, spatially resolved LIF measurements of Xe+ are performed in the plume of an electron cyclotron resonance plasma thruster. The mapping of ion velocity distribution function in the magnetic nozzle shows that the ions are accelerated over a distance greater than 12 cm. A mean axial velocity up to 16 km/s has been obtained at 1 sccm and 26 W. The acceleration of ions is compared for different xenon flowrates.
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Proceeding of: 35th International Electric Propulsion Conference (IEPC), October 8-12, Atlanta, Georgia, USA
Keywords
Magnetic nozzle, Electron cyclotron resonance thruster, ECR thruster, LIF measurements
Bibliographic citation
35th International Electric Propulsion Conference (IEPC), October 8-12 2017, Atlanta, Georgia, USA